/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendGraph.h
Check that all dependencies are C++ class dependencies.
True if all dependencies are C++ classes. False otherwise.
static bool IsFlat ( const [FMetasoundFrontendDocument](API\Plugins\MetasoundFrontend\FMetasoundFrontendDocument) & InDocument )